Spike-machine



.L. SHEARER.

Making Spikes.

Patented Feb; 23, 1858.

UNTTED STATEH PATENT UFFTCE.

LEANDER SHEARER, OF DUNOANNON, PENNSYLVANIA.

SPIKE-MACHINE.

Specification of Letters Patent No.

To all whom 'it may concern:

Be it known that I, LEANDER SHEARER, of Duncannon, county of Perry, inthe State of Pennsylvania, have invented certain Improvements inMachines for Making Spikes; and I do hereby declare that the followingis a full and exact description thereof, reference being had to theaccompanying drawings and to the letters of reference marked thereon.

The nature of my invention consists of certain improvements in theconstruction of machines for making spikes.

In the accompanying drawing (Figure 1,) represents a plan of my machine,Fig. 2, a side elevation and Fig. 3 a detail view of the carriage andlower die stock where, A, represents the main driving shaft supported insuitable bearings, O, O, which shaft may be driven by a suitable drivingarrangement actuated by any desirable motor, and has upon it (best seenat Fig. 1,) three cams or cam wheels; the largest one of which B, is aside cam wheel and imparts by its rotation a reciprocating motion to thecarriage, C, the next in size K, elevates and depresses the vibratinglever L, which carries the upper die, and the third H, imparts theforward or labor motion to the header lever G. The carriage, C, issupported by a suitable frame or bed R, in which it slides or traversesfreely in grooves to which its ways are adapted; said carriage hasarranged upon one end the lower die, S, which is made adjustable thereonby means of set screws, 3, and has one side extended upward forming aflange, near the middle of which is a cavity, T, suitable to receive apin or projection from the upper die, for purposes to be described, andone end of which is formed as seen at and constituting the knife orcutter D and which operates against the edge, a, of the feed rest, D,which is made of the shape seen and securely attached to the frame R,and serves the double purpose of a feed rest and stationary knife.

L, is the main or gripping lever one end of which is pivoted at, M, tothe post or pillow block, M, the other end being forked to receive thecam K, which moves it upward and downward as before described upon saidlever L, is a die stock, E, in which is arranged the upper die, S,adjustable therein by means of set screws, 3, 3.

G, is the header lever, which is moved 19,452, dated February 23, 1858.

forward or toward the dies by means of cam H, and is brought back by aspring, J, connected thereto by a strap, 1, or by any other convenientarrangement; to said lever, G, is pivoted, a link or stock, G forreceiving the heading tool F, which latter is ad justed and securedtherein by a screw, 3

The operation of my machine will be readily understood from theforegoing de scription of its construction in connection with thefollowing explanation, viz: The machine being in motion or driven by anyadequate power, a rod of iron is-fed in through the rest D until its endstrikes a stop (placed at a proper distance from said rest) said barlying in the lower die, 8, when the carriage 0, bearing said die, ismoved forward by the side cam wheel B, until said die is broughtimmediately under the die, 8, in the main lever, L; by this forwardmotion of the carriage the bar of iron is cut off by the cutter, D,operating against the edge, a, of the feed rest, D, from the form of thecutter, D, and position of the bar when the said cutter severs it, itwill be seen that the said bar will be cut off diagonally, or on a taperfrom the top to the bottom edges of the same, leaving the piece or blankin the die, 8, with a point, to one side of said blank. When the die, 8,(now containing the blank) has arrived immediately under the die, 8 thelever L is caused to descend or vibrate downward, by means of the cam,K, and the blank in the lower die is compressed between said die and theupper one, whereby the point, of said blank is made to occupy a centralposition, and it is firmly held by the said dies while the beadingoperation is performed, which is done by the cam, H, coming in contactwith the lever, G, and forcing the upper end of said lever forward,whereby the beader F, is brought against the end of the blank and causesthe same to be upset and fill the dies thus forming a bead such asdesired, the spike is now finished and the lever, L, begins to ascend,when the spike is relieved of pressure, the carriage, C, immediatelybegins to retreat and the spike, being retained at one end by a pin onthe lower die, and also by a pin on the upper die near the middle and onthe opposite side, is knocked out ,of the lower die and falls to theground or floor.

I am aware that machines for making spikes have been so constructed asto cut and point the spikes simultaneously by the compression of thedies, and also that machines have been so made as to point the spikes bythe compression of dies, While the bar Was cut by a knife at the beadingend, and do not Wish to be understood as claiming any such devices, but

What I do claim and desire to secure by Letters Patent is Theapplication of the cutter D, acting against the cutting edge A, of thefeed rest,

header lever G, with its header F, the Whole 15 constructed andoperating substantially as described.

LEANDER SHEARER.

Witnesses WILLIAM HOLLANDS, HUGH CARROLL.

